A FedEx tractor-trailer slammed into a bus carrying more than 40 high school students on a Northern California freeway in a crash that left 10 people dead, AP reported.

A FedEx tractor-trailer slammed into a bus carrying more than 40 high school students on a Northern California freeway in a crash that left 10 people dead, AP reported.

The students were on a trip to visit Humboldt State University.

Many of those on the bus escaped through a window.